Drag-scraping apparatus



w. E. HALE. DRAG SCBAPING APPARATUS. APPUCATIN FILED FEB. 11, 1920. 1,398,897 Patented Nov. 29, 1921,

W11', .wi E. HALE,

BEAUMNT COMP, 0F PHILADELPHIA, PENNSYLVANIA, A. CORPORATION OF PENNSYLVANIA.

Specification of Letters Patent.

DRAG-SCRAPING APPARATUS.

ramasse Nev. ae, rear.

application mea February 11, 192e. serial No. stares.

T o all whom 'it may concer/1t.'

Be it known that I, WILLIAM E. HALE, a citizen of the United States, residing in Fort Vtashington, Montgomery county, Pennsylvania, have invented certain Improvements in Drag-Scraping Apparatus, of which the following is a specification.

My invention relates tocertain improvements in drag scraping apparatus for delivering material from a car to a pile or removing material from the pile to be delivered to a power plant, or to' be delivered to cars for transfer.

My invention is particularly adapted for use in connection with coal storage apparatus for industrial and municipal plants. It can also be used for any purpose in connection with storage apparatus where itis desired to store coal, or other granular material. v

One object of the invention is to provide swivel sheaves for the rope hoists, which are capable of being adjusted on a beam, or other support.

A. further object of the invention is to arrange the rope hoisting sheaves so thatthey can be readily turned on a swivel.

In the accompanying drawings:

Figure 1 is a side view of a post showing the swiveled sheaves;

Fig. 2 is an end view of the post/shown in Fig. 1;

Fig. 3 is a sectional view on the line 3 3,

Fig. 1; and

Fig. 4 is a sectional view on the line 4-4 Fig. 1, showing thelower sheaves.

20 is a post, preferably a channel beam, as shown. This post is located in close proximity to a piling floor on which the material is piled, by means of a scraper, or removed from the pile by a scraper, which isl operated from a fixed drum structure through ropes. These ropes 16 and 16a pass around sheaves, which are mounted on the post. The sheaves should accommodate themselves to the ropes as the scraper travels over the piling floor and should be capable of being raised and lowered as the height of the pile is increased or diminished. v

In the present instance, there are four sheave carriers 29, 29a on the post 2O and the lower sheave carriers-29 are clamped to the flanges of the ost by ortions 30, which pass around the e ges of tie Han es and are secured in position by bolts 42, ig. 4.

The upper sheave carriers 29a are mounted so as to slide vertically on the post and ropes 32 pass around ratchet drums 33 mounted on shafts and operated by a handle 34 through a pawl. j The pull of the rope 16 will keep the rope 32 taut at all-times.

The rope 16 passes from a drum around the sheave 18 and up and around the sheave 19 to the scraper and the rope 16a passes from the scraper around the sheave 21 and down around the sheave 22 to a drum. The lower sheaves 18 and 22 are each mounted in a frame 28 swiveled in a carrier 29 and .the upper trunnion of each frame is hollow for the passage of the rope, the hole in the trunnion being in a line with the periphery of the sheave.

rIhe upper sheaves 19 and 21 are each mounted in a frame 28a swiveled to a carrier 29ai and the lower trunnions of the frames are hollow for the passagek of the rope. By this arrangement, each sheave will accommodate itself to the direction of pull on its rope and the upper sheaves can be raised and lowered to accommodate them to the hei ht of the pile. l l f t will be seen by the above construction that I provide an apparatus for handling coal and other granular material, which can be economically installed, and in which the machinery house can be located directly on the ground in any position in respect to the elevating apparatus. The rope for the scraper can be passed around' sheaves, which will accommodate themselves to the rope, irrespective of the position of the scraper on the pile The sheaves can be vertically adjusted to bring the rope in proper alinement with the upper surface of the pile.

I claim:

The combinationin a hoisting apparatus, of a flanged post, two sets of sheaves mounted on the post, each set of sheaves having a carrier provided with extensions encircling one of the flanges of the post; a frame having trunnions mounted in each carrier, one of the trunnions being hollow for the passage of a hoisting rope, the two setsl of sheaves being located close together, one sheave of each set being adjustable in respect to the other sheave; and means for retaining'each adjustable sheave in the position toA which it is adjusted. 

